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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses the conversion of dc voltage levels to ac to represent logic states?
Modbus protocol can implement data encapsulation over IP based networks. Which of the statements below is an advantage of using encapsulation?
In the protocol specifications of Modbus, there are 5 and 6 digit addresses, each address starting with a specific number for the register type. Which number below starts the input registers addresses?
The numerous tasks that are accomplished at the same time in a DCS, is a result of the configured software programs that it has . Which of the software programs below will governed by IEC-61131-3?
RS-232 to USB is the best example of which of the following converters?
There has to be a way for data to be communicated to the systems I/O for a HMI application to be effective. Which of the terms below best represents the pool of information for this communication?
There are several fields in an Ethernet message frame structure. Which of the answers represent the content of the FCS field in the Ethernet message frame?
Because if the inherent nature of the hybrid communication, which of the communication methods below cannot be used with a hybrid transmissions?
Which of the network components below combines two or more smaller networks working within the ISO physical and data layers?
With IPv4, you would use static address assignment over dynamic for this primary reason?
IN IPv4 both static and dynamic addressing can be used in conjunction with each other. Which of the situations below needs to be focused on when using both addressing options?
Which answer below best represents the number of trunk connections in a standard H1 transmission system junction box with 6 connections available?
Which of the answers below is not a parameter of the H1 transmission system resource block?
HMI networks are needed to expand or contract as required over their lifetime of use. Which of the networking types below will solve multiple DA server scalability issues?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the switch interacts with?
Which component of a wired Ethernet network has provisions for interfacing with the OSI model physical and data link layer?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that coverts the analog signals from T/Cs and RTDs to a digital signal?
Which answer below is best described as the RS-232 standard for voltage range to transmit a "Mark"?
In a typical GUI, values take one of four generic indicators. Which of the indicators below would best be used with analog values that require a significant degree of accuracy?
The standard recommended by ISA-18.2 is for 3-4 priority level alarms to be used. Which of the alarm priority levels below can best be described as aggressive upset conditions that would require operator intervention within an appropriate time period?
Which answer below is best described as the RS-485 standard for voltage range to transmit a "Mark"?
To communicate with a process control system, a network interface adapter is required. Which of the answers below would satisfy the minimum number of network adapters required?
Which of the recommended standards would be best described as having a full duplex transmission system?
There are several stages in the alarm lifecycle. Which of these stages has the continuous overseeing and documentation of the performance of the alarm system?
Which of the cable types are best used for the spur cables in an H1 transmission system?